RE: 2.6.16-rc5: known regressions [TP 600X S3, vanilla DSDT]

["Yu, Luming" <luming.yu@intel.com>]

>> Hmm,  probably, you need to do :
>>
>> 4. in acpi_thermal_notify,
>>       if (acpi_in_suspend == YES)
>>               do nothing.
>
>I've just tested that.  It suspended twice without problem, which made
>me think the problem was solved.  But it hung on the third suspend!

I'm NOT surprised about that hung, because kernel thread kacpid 
is a kernel worker thread that has flag PF_NOFREEZE, that means
kacpid won't be freezed.  I tried to freeze kacpid, but end up with 
this conclusion.  From my understanding, for safety concern,
kernel worker thread should be freezed. Because, kacpid could
invoke AML methods that we are trying to avoid during suspend.

Please try additional ugly hack
 5. in acpi_os_queue_for_execution:
	if(acpi_in_suspend == YES)
		do nothing.

Also, please add acpi_debug_layer=0x10 acpi_debug_leve=0x10 
boot option, then you can observe what methods were executed
before suspend.

Thanks,
Luming
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/